feat(interpreter): remove SPEC generic from gas calculation functions (…

…#1243)

* feat(interpreter): remove SPEC generic from gas calculation functions

* feat(interpreter): make most gas cost calculation functions `const`

* set_final_refund

* unused

* fix: optimism

* chore: use `is_london: bool` instead of `SpecId` in `Gas::set_final_refund`

crates/interpreter/src/gas.rs

@@ -5,7 +5,6 @@ mod constants;
 
 pub use calc::*;
 pub use constants::*;
-use revm_primitives::{Spec, SpecId::LONDON};
 
 /// Represents the state of gas during execution.
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Hash)]
@@ -94,8 +93,8 @@ impl Gas {
     ///
     /// Related to EIP-3529: Reduction in refunds
     #[inline]
-    pub fn set_final_refund<SPEC: Spec>(&mut self) {
-        let max_refund_quotient = if SPEC::enabled(LONDON) { 5 } else { 2 };
+    pub fn set_final_refund(&mut self, is_london: bool) {
+        let max_refund_quotient = if is_london { 5 } else { 2 };
         self.refunded = (self.refunded() as u64).min(self.spent() / max_refund_quotient) as i64;
     }